ASN to IP Mapping

Hank Nussbacher hank at
Sun Mar 8 10:10:09 UTC 2015

On Sun, 8 Mar 2015, Geoff Huston wrote:

> Users of this report should be aware that there are some subtle deviations from this spec in the published data:
> - the RIPE NCC uses the non-ISO 3166 2 letter code 'EU' for some allocations. I do not know exactly why;

I believe ERX records transferred from ARIN to RIPE will have EU listed as 
country code until RIPE is contacted to correct it.


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